import sys, os, json, tempfile, pytest
sys.path.insert(0, 'bin')
from log_append import append_entry, read_entries, LOG_PATH

def test_append_creates_file(tmp_path):
    log = str(tmp_path / "log.jsonl")
    append_entry({"project": "test"}, path=log)
    assert os.path.exists(log)

def test_append_writes_valid_json(tmp_path):
    log = str(tmp_path / "log.jsonl")
    append_entry({"project": "x", "kept": True}, path=log)
    with open(log) as f:
        data = json.loads(f.read().strip())
    assert data["project"] == "x"
    assert data["kept"] is True

def test_append_adds_timestamp(tmp_path):
    log = str(tmp_path / "log.jsonl")
    append_entry({"project": "x"}, path=log)
    with open(log) as f:
        data = json.loads(f.read().strip())
    assert "ts" in data

def test_append_multiple_entries(tmp_path):
    log = str(tmp_path / "log.jsonl")
    for i in range(3):
        append_entry({"n": i}, path=log)
    entries = read_entries(path=log)
    assert len(entries) == 3
    assert entries[1]["n"] == 1

def test_read_entries_empty_if_no_file(tmp_path):
    log = str(tmp_path / "nonexistent.jsonl")
    assert read_entries(path=log) == []

def test_read_entries_skips_malformed_lines(tmp_path):
    log = str(tmp_path / "log.jsonl")
    with open(log, 'w') as f:
        f.write('{"project": "ok"}\n')
        f.write('not-valid-json\n')
        f.write('{"project": "also-ok"}\n')
    entries = read_entries(path=log)
    assert len(entries) == 2